How do i put down authorized stay expiration date on i130 petition

I do not know whether there is one correct answer, but we commonly put down “D/S” as the expiration date if F-1 was the last visa status held prior to filling out an I-130 petition. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.